<template>
	<view>
		<view class="goods-item">
			<!-- 商品左侧图片区域 -->
			<view class="goods-item-left">
				<radio :checked=goods.goods_state color="#C00000" v-if="showRadio" @click="radioClickHandler"></radio>
				<image :src="goods.goods_small_logo || defaultPic" class="goods-pic"></image>
			</view>
			<!-- 商品右侧信息区域 -->
			<view class="goods-item-right">
				<!-- 商品标题 -->
				<view class="good-name">
					{{goods.goods_name}}
				</view>
				<view class="goods-info-box">
					<!-- 商品价格 -->
					<view class="goods-price">
						￥{{goods.goods_price | tofixed}}
					</view>
					<uni-number-box :min="1" :value="goods.goods_count" v-if="showNum" @change="numChangeHandler"></uni-number-box>
				</view>
			</view>
		</view>
	</view>
</template>

<script>
	export default {
		name: "my-goods",
		props: {
			goods: {
				type: Object,
				default: {}
			},
			//是否展示图片左侧的radio
			showRadio: {
				type: Boolean,
				//如果外界没有指定show-radio的值,则默认不展示radio组件
				default: false,
			},
			//是否显示价格右侧的NumberBox组件
			showNum:{
				type:Boolean,
				default:false,
			}
		},
		data() {
			return {
				//默认的空图片
				defaultPic: 'https://img3.doubanio.com/f/movie/8dd0c794499fe925ae2ae89ee30cd225750457b4/pics/movie/celebrity-default-medium.png'
			};
		},
		filters: {
			tofixed(num) {
				return Number(num).toFixed(2)
			}
		},
		methods:{
			//这是radio组件的点击事件处理函数
			radioClickHandler(){
				this.$emit('radio-change',{
					goods_id:this.goods.goods_id,
					goods_state: !this.goods.goods_state
				})
			},
			
			//监听到NumberBox组件数量变化的事件
			numChangeHandler(val){
				//通过this.$emit()触发外界通过@绑定的num-change事件
				this.$emit('num-change',{
				//商品的id
				goods_id:this.goods.goods_id,
				//商品的最新数量
				goods_count: +val
				})
			}
		}
	}
</script>

<style lang="scss">
	.goods-item {
		//让goods-item项占满整个屏幕的宽度
		width: 750rpx;
		//设置盒模型为border-box
		box-sizing: border-box;
		
		display: flex;
		padding: 10px 5px;
		border-bottom: 1px solid #f0f0f0;

		.goods-item-left {
			margin-left: 5px;
			display: flex;
			justify-content: space-between;
			align-items: center;

			.goods-pic {
				width: 100px;
				height: 100px;
				display: block;
			}
		}

		.goods-item-right {
			display: flex;
			flex: 1;
			flex-direction: column;
			justify-content: space-between;
			margin-left: 10px;

			.goods-name {
				font-size: 13px;
			}

			.goods-info-box {
				display: flex;
				justify-content: space-between;
				align-items: center;
				.goods-price {
					color: #C00000;
					font-size: 16px;
				}
			}
		}
	}
</style>
